package com.avcdata.national.utils;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Rect;
import android.view.View;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * Created by lucasey on 2016/12/12.
 * from 亲爱的小栋栋
 */

public class ScreenShot {
    public static void shoot(Activity a, File filePath) {
        if (filePath == null) {
            return;
        }
        if (!filePath.getParentFile ().exists ()) {
            filePath.getParentFile ().mkdirs ();
        }
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream ( filePath );
            if (null != fos) {
                takeScreenShot ( a ).compress ( Bitmap.CompressFormat.JPEG, 100, fos );
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace ();
        } finally {
            if (fos != null) {
                try {
                    fos.flush ();
                    fos.close ();
                } catch (IOException e) {
                    e.printStackTrace ();
                }
            }
        }
    }

    private static Bitmap takeScreenShot(Activity activity) {
        View view = activity.getWindow ().getDecorView ();
        view.setDrawingCacheEnabled ( true );
        view.buildDrawingCache ();
        Bitmap bitmap = view.getDrawingCache ();
        Rect frame = new Rect ();
        activity.getWindow ().getDecorView ().getWindowVisibleDisplayFrame ( frame );
        int a = DisplayUtil.dip2px ( activity, 48.0f );
        int statusBarHeight = frame.top;
        int width = activity.getWindowManager ().getDefaultDisplay ().getWidth ();
        int height = activity.getWindowManager ().getDefaultDisplay ().getHeight ();
        // 去掉状态栏
        Bitmap b = Bitmap.createBitmap ( bitmap, 0, statusBarHeight + a, width,
                height - statusBarHeight - a );
        view.destroyDrawingCache ();
        return b;
    }

}
